Description

Poly(Vinyl Formal) is a synthetic resin produced by the formalization of polyvinyl alcohol, resulting in a material with excellent film-forming properties, adhesion, and chemical resistance. This polymer is valued for its ability to form tough, flexible, and durable coatings and binders that are resistant to oils, greases, and many organic solvents. It is a critical raw material for manufacturers in the coatings, adhesives, and wire enamel industries, where its specific balance of properties enhances product performance and longevity.

Application

• Wire Enamels and Magnet Wire Coatings: Serves as a primary binder for high-performance insulating varnishes, providing excellent electrical properties, thermal stability, and adhesion to copper and aluminum wire.
• Adhesives and Sealants: Used as a key component in structural and industrial adhesives, particularly for bonding metals, plastics, and wood, due to its strong adhesion and flexibility.
• Protective and Industrial Coatings: Formulated into primers, can coatings, and metal finishes where resistance to chemicals, abrasion, and corrosion is required.
• Textile and Paper Sizing: Acts as a strengthening agent and size to improve the durability, stiffness, and surface finish of textiles and specialty papers.
• Printing Inks: Employed in specialty printing inks to enhance gloss, adhesion to non-porous substrates, and rub resistance.
• Composite Materials: Functions as a matrix resin or binder in fiber-reinforced composites and friction materials like brake linings.

Basic Information

Product Name	Poly(Vinyl Formal)
CAS No.	63450-15-7
Molecular Formula	(C5H8O2)n • (C2H4O)m
Molecular Weight	Varies (Polymer)
Synonyms	Polyvinyl formal; PVF; Formvar®; Vinyl formal resin; Poly(vinyl formal) resin; Polyvinylformaldehyde; PVFO; Poly(oxyethyleneoxyacetaldehyde)
EINECS	Contact for details

Quality Control

Our Poly(Vinyl Formal) is manufactured under a strict quality management system to ensure batch-to-batch consistency and performance. Quality is verified through comprehensive testing of key parameters including viscosity, hydroxyl content, and degree of formalization. A Certificate of Analysis (COA) detailing specific test results is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat sources and open flames. Under these conditions, the product has excellent shelf stability.

Specification

Item	Specification
Appearance	White to off-white granules or powder
Identification (IR)	Conforms
Viscosity (Solution)	As per grade (e.g., 20-50 cP)
Hydroxyl Content	5.0 - 7.0 %
Acetalization Degree	75 - 85 %
Residual Acetyl Content	≤ 2.0 %
Ash Content	≤ 0.1 %
Moisture Content	≤ 1.0 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.